Chlorination of Ethylene Dichloride Perchlorethylene (PCE), together with trichlorethylene (TCE), are the products of the chlorination of ethylene dichloride (EDC). This process involves the reaction of EDC with chlorine, where its products undergo further distillation and purification to produce TCE and PCE suitable for consumer trade. The stoichiometry of the given process reaction indicates which is the greater desired product, i.e. PCE or TCE. The reaction occurs at a temperature of 400 – 450 degrees Celsius and a pressure of 1 atmosphere. The EDC and chlorine, in the vapor state, are introduced into a chlorination reactor. This reactor operates under the conditions mentioned above (temperature: 400 – 450 degrees Celsius; pressure: 1 atmosphere). Chlorinated hydrocarbons that are reactor byproducts are recycled and returned to the reactor. Chlorinated hydrocarbons and hydrochloric acid exist in a mixture of the stream produced by the chlorination reaction. The hydrochloric acid is then separated from the mixture. The chlorinated hydrocarbon stream is then neutralized and ...